Goes to lock screen after AFKing for a few seconds

[149Dragonite]

So when I first downloaded wallpaper engine I selected yes on something that had to do with the lock screen that made it whenever I was AFK it would go to the lock screen. This is getting really annoying because it will go to the lock screen after like a minute or two. I often leave my computer while downloading something or waiting for a friend to get on and it will go to the lock screen during that. I need help figuring out how to turn this off, I have looked all through out settings and found nothing. Any help is very appreciated, thank you.

[Deku Scrub]

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[Capt.Luke]

setting> general> window>overide lockscreen image